Ketamine, A Promising Depression Treatment, Seems To Act Like An Opioid

These PET scans show the normal distribution of opioid receptors in the human brain. A new study suggests ketamine may activate these receptors, raising concern it could be addictive.

A Stanford research team finds that ketamine’s ability to quickly relieve depression may depend on activating the brain’s opioid system. The finding raises new questions about the drug’s safety.

(Image credit: Philippe Psaila/Science Source)